Suffolk County Tax Department

Search for Suffolk County NY tax departments. A tax department search can provide information on federal taxes, state taxes, and local taxes, including property taxes, property tax assessments, tax deadlines, tax payment plans, tax refunds, unpaid taxes, delinquent taxes, and tax liens.


A Treasurer and Tax Collector in Suffolk County New York is responsible for collecting local taxes and disbursing these funds, including property taxes. Suffolk County Treasurers and Tax Collectors maintain a number of tax-related records, including property tax assessments, parcel numbers, local tax assessments, appraisal values, and information on individuals with delinquent taxes. These Suffolk County tax departments may provide information on tax payment plans, tax refunds, tax liens, and foreclosures. Some offices also handle business taxes and licensing as well as vehicle taxes and registration. Treasurers and Tax Collectors provide a range of Suffolk County tax information and services, which are accessible through their website.

Asharoken Village Treasurer Northport NY 1 Asharoken Avenue 11768 631-261-7098

Babylon Village Treasurer Babylon NY 153 West Main Street 11702 631-587-6270

East Hampton Treasurer East Hampton NY 86 Main Street 11937 631-324-4150

Sag Harbor Village Treasurer Sag Harbor NY 55 Main Street 11963 631-725-0222

Suffolk County Treasurer Hauppauge NY 100 Veterans Memorial Highway 11788 631-852-1500


A Clerk in Suffolk County New York operates at the county or local level of government to maintain public records for their jurisdiction. In addition to keeping vital records like marriage licenses and birth certificates, Suffolk County Clerk's Offices also have a number of tax-related records and provide services related to taxes. This includes records on property tax assessments, paid and unpaid taxes, delinquent taxes, and tax liens. Suffolk County Clerk tax departments may also provide information on tax payment plans, tax refunds, and local foreclosures. In addition, some Clerk's Offices handle Suffolk County business taxes and licenses as well as vehicle taxes and registration. Clerks provide access to many of their services and records online.

Amityville Clerk Amityville NY 21 Ireland Place 11701 631-691-3303

Bellport Village Clerk Bellport NY 29 Bellport Lane 11713 631-286-0327

Brightwaters Village Clerk Brightwaters NY 40 Seneca Drive 11718 631-665-1280

East Hampton Town Clerk Montauk NY THE Plz 11954 631-668-5081

Head Of The Harbor Village Clerk St. James NY 500 New York 25A 11780 631-584-5550

Jo Ann Raia Town Clerk Huntington NY 100 Main Street 11743 631-673-9477

Lindenhurst Clerk Lindenhurst NY 430 South Wellwood Avenue 11757 631-957-7501

Lloyd Harbor Village Clerk Lloyd Harbor NY 32 Middle Hollow Road 11743 631-549-8893

North Haven Village Clerk Sag Harbor NY 335 Ferry Road 11963 631-725-1378

Northport Village Clerk Northport NY 224 Main Street 11768 631-261-7502

Quogue Village Clerk Westhampton Beach NY 172 Dune Road 11978 631-653-4498

Southampton Town Clerk Hampton Bays NY 25 Ponquogue Avenue 11946 631-723-3820

Southampton Village Clerk Southampton NY 23 Main Street 11968 631-283-0247

Southold Town Clerk Southold NY 53095 Middle Road 11971 631-765-1801

Suffolk County Clerk Central Islip NY 400 Carleton Avenue 11722 631-853-4312

Suffolk County Clerk Smithtown NY 725 Veterans Memorial Highway 11787 631-853-4074

Suffolk County Clerk Riverhead NY 310 Center Drive South 11901 631-852-2041


An Assessor in Suffolk County New York works for the county or local government to determine the appraisal value of taxable property within its jurisdiction. This information is used to assess the taxes, including property taxes, owed by residents. Suffolk County Assessors provide a number of tax-related services, including parcel searches, tax payment plans, tax refunds, and liens. The Suffolk County tax department may also keep records on foreclosures, properties with delinquent taxes, and tax payments, as well as property tax assessments and property tax payment schedules. Assessors provide access to many of their services and records online.

East Hampton Town Assessor East Hampton NY 300 Pantigo Place 11937 631-324-4187

Islip Assessor Islip NY 40 Nassau Avenue 11751 631-224-5585

Patchogue Assessor Patchogue NY 14 Baker Street 11772 631-475-2561

Shelter Island Assessor Shelter Island NY 38 North Ferry Road 11964 631-749-1080

Smithtown Town Assessor Smithtown NY 40 Maple Avenue 11787 631-360-7560


An IRS Office in Suffolk County New York is a taxpayer assistance center run by the Internal Revenue Service. Suffolk County IRS Office tax departments provide a range of tax-related services, including basic tax law assistance, processing applications for individual tax identification numbers, and other individualized tax services. They can also accept tax returns and tax payments, help individuals set up a payment plan, and resolve IRS problems. IRS Offices also provide specialized services, such as assistance with Affordable Care Act tax provisions and heavy highway vehicle use tax returns. Some matters require an appointment, which can be made on the Suffolk County IRS Office website.

Hauppauge New York IRS Office Hauppauge NY 1180 Veterans Memorial Highway 11788 631-851-4726

Riverhead New York IRS Office Riverhead NY 518 East Main Street 11901 631-851-4726


A Finance Department in Suffolk County New York administers finances for its jurisdiction, often at the state or local level. As part of their responsibilities, Finance Departments provide information about New York State and local Suffolk County taxes, including property taxes, and maintain tax-related records. These tax department records include Suffolk County property appraisal values, paid and unpaid property taxes, tax liens, and foreclosures. Finance Departments may also provide services such as tax payment plans, tax refunds, or help with other taxes such as business taxes. Suffolk County Finance Departments provide online access to many of their services and tax records on their websites.

Melville Finance Department Melville NY 68 South Service Road 11747 631-465-2066